Harrow



Dec. 4, 1923.

G. c. HEsToN HARROW Filed March zo, 1.922 4 sheets-sheet 1 LTI) www, .SQ ma.

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Dec.4 4 1923.

G. C. HESTON HARROW 4 Sheets-Sheet 2 Filed March 2O 1922 Dec. 4, 1923.

G. C. HESTON HARRow Filed Maron 2Q, 1.922 4 Sheets-Sheet 4 @ttor new atented Dec. 4, l923 Lllsll'iE S'A'l' arri' GEORGE C. RESTON, OF MANSFIELD, OHEO, SSGlIOB T0 RODERICK LEJN MANFAC- TUBING COMPANY, OF MANSEELD, OHIO, A CGl/POEATON 0F NEV. JERSEY.

.n.ennow.

Application ledilarch 2i), 1922. VSerial'No. 545,196.

T o all whom t may concern.'

Be it known that I, Grenen C. lflnsroN, a citizen of thenited States, residing at Mansfield, in the county of Richland and State of thio, have invented certain Vnew and useful lii'ipi-ovements in Harrows, or which the following is a specification.

rThis invention pertains to harrows and has to do more particularly with those of Vthe tandem type wherein. the front and rear gangs may be brought into differentv angus lar relations to ech other and to the'line of draft. Broadly considered, harrows ot this general type have heretofore been employed but the' present invention has for its main object a construction which admits ot' a wider range or adjustment as between the gangs and more particularly. `independent variable adjustment ol the rear gang units relative to each other as well as to the iront gangs.

A further object oi the invent-ion resides in the provision of means extending to the forward portion of the structure, whereby the operator may set or determine the angle of' the gangs, both forward and rear pairs, without leaving his seat upon the tractor employed to draw the liarrow.

)Vith these and other objects and advantages in view, as will hereinafter appear, reference will be had to the annexed drawings, wherein,-

1 is a top plan view of the barrow "with i the gangs straightened parallel transporting position;

Fig'. 2.a similar view with the gangs an` gled, and likewise showing,'by dotted lines,- a varving angular' Vposition in which one may (or f le other) of the rear gang units be set or assume.

Fig. 3 a longitudinal vertical sectional view, taken on the line III of Fig. 1;

Fig. l a similar view on an enlarged scale, of the angle .setting or determining n'iecha-nisin;

Fig. 5 a detail view of the ratchet wheel and its allied parts;

Fig. 6 a horizontal section on the line Y VLVI of Fig. 5;

Fig. 7 a transverse vertical sectional view Von the line VIL-VH of 4l, illustrating the inter-connection between the clevis and the pinion carried by the manually operated adjusting shaft; also the lever and lockingy n'iechanism employed in conjunction with the positioningol' the rear and f Fig. 8 a horizontal detail sectional view taken on the line VH1-HH oit F10'- 4.* f'

b ln said drawings, 1 and 2 denote angl-:gy bars formino' the stub axle. which membersl D f I are secured to a rigid front l' aine compris-- ing a cross bar 3 and a forwardly curved Y.

member' t, said bars and Vmember likewise 'being produced from angle forms. The

`iront disk gangs are denoted by 5 and 6, respectively, the outer ends of the axles whereof are broken away, i gangs are denoted by 7 and 8.

Inasmuch as Vthe variousA supports connecting and positioning orconti'olling elcments for each oiL the front gangs are duplicated, and the saine holds true of the rear gangs as well, similar reference nuii'ierals will be applied throughout, with the exponent a to the duplicated members'.y

Each of the front gangs or gangunits, is provided with two bearings or bearing boxes 9 and 10, the former being relatively fixed and aii'ording the center about which the gang pivots to assume its angular vor adjusted position. rEhe lixed 'iront 'frame and the rear at each end is provided with a gusset plato y,

11 anda radius bar 12 is pivoted thereto and to the bearing 9. A draw bar 13 pivotally connected to the inner bearing 10, said bar extending ii'orwardly and being sccured to a draw block 111 slidably mounted on the stubaxle, and adapted to Abe held-'in one or another adjusted osition thereon, as will presently appear. aid blockV (see Fig. 4e) extends downwardly through the stub axle and is held in position thereon by an underlying'plate 14 which is bolted thereto.A

Extending upwardly from each of the respective bearings 9 and 10 arestr'uts 15 and 16, (Figs. 2 and 3), which are in turn connected to an overlying anglebar 17 which lies parallel to the axle of the gang. A sec- .passes freely through a slot 21 formed in thev i bar l?. h of the front gangs is thus iconnected to the front. by radius bar Vcon- Vneotions l2 and l, and l2?L and 1 8, respectively, and to the law bloeit through the draw bars lil and i L and the bars 19 a d 19a. Slida'ily mounted upon the stub p le is a clevis 22, the eleyis passing to each side of block le and havingl its rear'end closed by a bolt, 23. rllhe clevis is vdesigned to move-d along,v the pole and to he held in lits adjusted position and to thereby determine the final position of the block, and Consequently the gangs when draft is applied 7. A rack 26 is secured lt0 the cleyis 22 and meshing therewith is a pinion 2J, the hub whereof finds a bearing` in plate 2d. Said pinion has a squared opening extending therethrough .into whiJ-h extends the loe'er squared end of vertically disposed shaft 28.l The upper end of the shaitpasses -thougha bearing1 bleek or casting 29 held inv place by suitable braces 30 whieh entend u ne wardly from the fixed or rigid forward frame. Aihand wheel S31 is secured to the upper end lof the shaft and the hub thereof, upon its under face, is provided with ratchet tee-th 32V with which engagesy a looking bolt or' ,dogl 33. v ehainbered extension 34e of the bearingvbleek 29 and is urged upwardly into lockingpo- `sition by e. spring 8f. i lever is piyoted Ito the lower end or stein of the boltand is Forward movement of the clevis is,'howeve1,

provided with two cani faces 3'? 38 adapted to coast with the lower outer face ofthe extension ln the full line position. (Figs. l and 5) with 'the lever 86 throwndown cuni 3T allows the bolt to enter the teeth; when, however, the leve-r is drawn upwardly, cani 38 tends to draw lthe bolt downwardly and to hold it down so the cani 38 passes inwardly beneath the lowerI end of extension 34. When in the latter position the shaft may turn in either direction, and, a consequence, the' elevis may be pulled forward with reference to the stub pole or moved rearwardly.Y W7 ith Vthe parts in the full line position, the eleyisrnay be pushed rearwardly, 0r the wheel 3l turned oloclrwise, and vthe olevis forced baelrwardly throughi-the raclr and pinion construction.

` prevented, with the parte in suchA position.

Adjustment of the olevis determines the ultimate position of the draw bloc-lr li and,

consequently, determines the angularity of the gangs when draft. is applied, as will le hereinafter more fully set forth.

Secured yto the rear eind of the stub pole and to theV cross member I3 of the forward wardly and reerwardl O' 4C. The frame el? thus holds the rear gli Said bolt is mounted within a l i to the connecting frame l? Overlyingf .an

"through a freine, isa member 39, prefeiablyfoimed of channel iron. Said reeniber entendsv upy from the freine and its rearn'iost portion lies Vin horizontal i.i? i

cooperate with the rear Vi'osilion thenian-d hold iosition, are dupli- Y e to each g cenoted lby similar reference Aponent a applied to te Set. rlhe rear ing' i wo bearings (AAL rl'hese members, i aineworlr, and overlying the is a eo-nnectinp; frame the Connection'being` effect'A ed between said box und the underlying' frame throil. i Vertical-ly disposed pivot-bolts d,

n spaced relationwhilo perniittiug to be angled independently oli siinultaneously, inay be dei eeured to the fnune ori weight bei; are downwardly entf-ind@` plates 49, L92 i tes haring an eye former, in the lower straps 50 which are securedy to the. under-V fr le and through the eye forinezl in the plete. This serves to limit the swi' ing;` movement of A,he gangs with refers resting upon the rearward extension or th ineinber 39 is a cross 5l, the outer endu of which are depressed and f and in alhieinent with the rear ends of tie draw bars 19 and 15,9% to which the e'-ds of said ber are connorted by the .links 52, iii-l and 22a and ill EL., rc nectively. Pi'votally conne jl vto the outer rnd of the ber il a drift. rod fifi, seid iiar extending` rear rardl; ,and .lowni connecten it its lower end: to :in oye-bolt which extends through the frame nioinl 42 (seo Fig. direffl above the boi; bearing fll. Said draft bar connected the upper portion the unL der fraine by a link; 56, theY rear hooked end` of which into an eye forined in thel e 7 similar in nieinber Y il draft bar Y n 'gis piyotally connectedV at .itsloi errear nd to. au eye-bolt secured to the 'traine members above the 'l'iearing` 40,5 and likewif-le Connected at its upper Yend hoolr liiulr 59 tothe rear trarne,- or, more specifically, the member d6 there of. t its foi-ware. end the draft bar 57 piro/tally 'taehed to a draw bar or link 60," which draw bar extends forwardly at a point slightlj,7 above that of the stub'pole and the olevis. At its rear portion it passes through an opening formed in theupstanding ineinng, and such i thereof and cooperating` i-.t'itli'` inn l' n l o, 4 f i t 1 ,iw-no niemeer 39. Ehe angle memos is of a length greater than the wid fh ber of an angle plate 6:2, which is 4secured t a bracket 63 which in turn is attacher1 to tn under face of the rearwardly eatendin w l be best seen uponv referenceto y ig. i

of the bracket 68, and the draw bars and 6th pass through the opening formed in' the upstanding member of the plate G2 to each side of the bracket member and in asense are guided therl y. At its forward end the draft bar 60 1s pivotally connected lto a hand lever 64, which, in turn, is pivotally attached at its lower end to the upstanding arm 25 of the bracket member 2li, secured to the stub pole. rlie pivotal connection of the loY fer end of the lever 6ft is effected through a bolt 6G which passes through an enlarged openingformed in the lower end of the lever so that the lever may be swung inwardly away from the bracket element 25 to which it is normally drawn by aspring 67 which encircles a pin 68 secured to and movable with the lever. Said pin, as will be seen upon reference to Figs. 3 and 4l, passes through an arcuate slot 69 formed in the bracket member 25 the upper edge of which bracket member is curved and provided with a series of recesses 70, adapted to receive a fixed lug 7l extending-laterally from the lever in line with said notches or recesses.

To change the position of the lever, the operator throws the inner end inwardly and then shiftsl it backward or forward, as may be desired, and when itV comes opposite the desired notch, dependent upon the adjustment of the parts to be effected, the lever will become lociied upon release thereofI by the operator, the spring 67 serving to draw it toward theTbraclet member 25 and causing the pin 0r lug TitoV enter the notch which is thon opposite it.

lt will be noted upon reference more particularly to 'l and 2 that the draw bars or vl inlrs 60 and 60 and their lever mechanisms are independent of each other and that the draw bars, and consequently the position of the draft bars 57 and 57, may be adjusted infglependently of each other. lt

therefore follows that the angular adjusted ijiosition of the rear gangs with reference to each other and to ie front gangs, may be varied as desired. I

Having reference to Fig. 2, and considering the full line position, it will be seen that the inner en-dsl of each of the rear gangs 7 and 8 are drawn forward to the full extent` (lonsidering thel dotted line position, in which instance the lever or handle 6l is thrown rearwardly, it will be seen that the gang 7 is moved substantially bac-lr to a position where it approaches a line at right angles to the line of draft, lt will. also be observed that both of the handles 64 and 64a, are at the forward end of the machine brought to any desired position without the necessity of the operator leaving n.5

se Y

en it is desired to fully vstraighten-the gangs to bring theni into thetransporting position, the handles 64 and 6ft will he thrown fully forward and locked in that position, the handle '36 being thrown to the dotted line positionl e) at the time, so as to withdraw the locking and allow the wheel 3l, the shaft 28, A the allied parts, torunfree, whezeirpouv draft upon the clevis will Vpull hoth sets ofv gangs to the straight position. lllll'ien the Vgangs are straight the clevis is fully forward and the crossfbar l is likewise fully forward, as indicated in Fig. l.

As above pointedout, the rear gangs may be adjusted to different angles independent of each other and to any angle, inter-mediato straight and fully angled position, and this may be done while the harrow is in motion. lt is frequently advantageous, when working in light soil, to have the rear gangs at less angle than the front gangs, as with such less angularity the rear gangs will throwl less earth than the front gangs. il further advantage resides in the fact that one rear gang can be given less anglek than the other, which is of greatl utility in hill side work.

As will be understood by those skilled in the art the Vdegree `of angularity of the front gangs and also the rear' gangs, may be determined by the` operator through the manipulation of the handy wheel 3l which varies the adjustment of the clevisv with reference to the draft block le. f

Assuming that the parts are iu the position in Fig. l, or what is'known as the transporting position, .with allthe disks in line with the draft, thev operator' will, through the manipulation of the wheel 3l, `move the clevis rearwardly from the `position shown in Fig. l to that which it occupies in 2, and Y the cle-vis will be automatically locked in such position through the bolt 33, preventing retrograde movement of the wheeland. its allied parts. Upon applica-- tion of draft to the clevis, the disks digging into the earth, will draw the gangs to the position shown in full lines in Fig. 2,4the

block l/l moving rearwardly until it ab-uts the closed end of the clevis, the front gangs the tractor; which has the effect of i.

Vcleric with referente o vfront gangs; a pair pendent ofthe variable angularadjustment Win-:cli mI beV effected in either one oi' both of the rear gangs through the manipulation of thev levers Se and 6er-a.

lt will also be understood that the may be for angling by the bachi tho'clevis back and positioning" s.

Vthat when 'dra is applied the k o yunits vill beV brought tojtlie Le c relation. lSuch rear fard movementei clevis isperinitted by the ratchet cth 32 andthe beyeler i the con-V struction; Vhowe Illy locking mer` t of the vand preventing i pole yandfront frame under the applic.

Vil-hat is claimed isi-- v l.. ln a tanden'i Vdislr hai'rmv;B a

'frontgangs5 a pair of rear gangs; means acting under draft ilied to the barrow for placing the gangs in angie; and means, under the conc-rol operator, if pendently ra. o the angularity of or 'both of said rear a the front and to'eachotlier. Y

S3. ln tandem dish liarrounja pair of rear gangs; means acting under draft to place the in angle; and means under the control of the operator for varying the angi'ilar position of one ofthe gangs independently of the other. f A ln a tandem dislr barrow; a pair 'of front gangs; pair of rear gangs; means for placing the gangs in angle; and means under the control of tlie operator foryarying the angle of either or both of the rear gangs independently yof* change in positioni of. the front gangs. -Y Y Y Y '4t-In tandem dislrharroiy; a pair of front gangs; a pair -of rear gangs; means for simultaneously placing the gangs in YVangle by draft appliedto the barrow; and

means located at the forward portion of the Yharrow and under control of the operator for .f'arying the angularity of Veitlierone or both of the rear gangs.

5. ln a tandem dislr barrow; a pair of front gangsga pair of rear gangs; adjustable means for determining the angular position the gangs Will assume under draft applied vto the harrouf'; and manually operated means capable of beingl actuated when the harronT is in motion for Varying the angular Wit rel. Jion to means; and means under thel direct control of the operator for effecting an independent angular positioning of either or both of the rear gangs Y 7. ln a tandem disk hai-row, the combination of a pair of front Vgai'igs piyotally mounted for angular positioning with reference to the line of draft; a pair of rear gangs similarly mounted;jdraftactuated means for placing both sets in angle; and means under the control ofthe operator for varying the angular position of either orbotli of said rearv gangs7 said Vmeans beingV susceptible Vof beine,v operated.` prior to the 'application-of drart or during the same.

8. inV a tandem disk harroW,l the combination of a front frame embodying a stub-axle; Y

a. draft clevis mounted for adjustment thereon; adraft block slidably mounted onthe pole; means forV locking the clevis in its ad- ]usted position and against forward moyement; a pair of front gangs; connections between each gang and the frame permitting said Oanogs to sWin into anoular'ielation to J #j L. 1 D n Y. i the line of draft; a pair of pivotedlrear gangs; a draft block mounted on the stub pole and adapted to be arrested upon rear- Ward movement by the clevis; draft connections extending from the block to the front and rear gangs; and means under 'the control of theV operator for varyin theV degree of angularity of each or both o *said rear gangs,VV

as desired.V y 9. ln a harroW, front and rear frames; disk gangs carried thereby; means for-automatically straightening said rear gangs inv backing; means forl setting an angle for' the rear gangs inA backing and for assuming the angle so set on the neXt forward pull; and means under the control of the operator for permittingyariation ofthe angular adjustreference'to the other. n

'10. l'n a barrow;V front and rearliarrou units; disk gangs on said units; means connecting said units; Vmeans operable by the' draft power for setting the angle vvin bothV sets of gangs in backing; means for putting Y the gangs into angle by a pull; and'means under the control of thev operator for permitting variation of the angular adjustment of at least one of said rear gangs With referand the front and rear gangs ga pivotalconnection between each of the front gangs and thev front frame; pivotal connections for the rear gangs; and means under the control of 'nient of at least one of said rear gangs With iio isa draft connections between the draft blockV a draft block cooperating with the clevis; a

vals

pivotally connected to the forward ends ofY pair of front gangs; a pivotal connection between each of the front gangs and the front frame; a pair of rear gangs; draft connections extending from the draft block to the front and rear gangs; a bearing located adjacent the inner end of each of the rear gangs; a bracket shaped member secured to the under face of the rear extension of the frame; a pair of draw bars passing through said bracket member and extending forwardly adjacent the stub pole; connections between the rear ends of said draw bars and the bearings at the inner ends of the rear gangs; and means, under the control of the operator for moving said draw bars forwardly and rearwardly and holding them in their adjusted position whereby the angular position of said rear gangs maybe varied independently of the other parts of the mechanism, and independently of the angular adjustment imparted to the front gangs.

13. In a disk harrow, the combination of a front frame; a stub pole extending forwardly therefrom; a draft clevis slidably mounted upon said stub pole; means for locking said clevis in its adjusted position with relation to the pole; a rearwardly extending member secured to the front frame; a draft block cooperating with the clevis; a pair of front gangs; a pivotal connection between each of the front gangs and the front frame; a pair of rear gangs; draft connections extending from the draft block to the front 'and rear gangs; a bearing located adjacent the inner end of each of the rear gangs; a bracket shaped member secured to the under face of the rear extension of the frame; a pair of draw bars passing through said bracket member and extending forwardly adjacentrthe stub pole; connections between the rear ends of said draw bars and the bearings at the inner ends of the rear gangs; a pair of levers fulcriimed upon a fixed portion of the structure and the draw bars, respectively; and means for locking said levers in their adjusted position.

14. In a disk harrow, the combination of a front frame; a stub pole extending forwardly therefrom; a draft clevis slidably mounted upon said stub pole; means for locking said clevis in its adjusted position with relationV to the pole; a rearwardly extending member secured to the front frame; a draft block cooperating -wit the clevis; a pair of frontl gangs; a pivotal connection between each of the front gangs and the front frame; a pair of rear gangs; draft" connections extending from the draft block to the front and rear gangs; a bearing located adjacent the inner end of each of the a rear gangs; a bracket shaped member secured to the under face of the rear extension of the frame; a pair of draw bars passing through said bracket member `and extending forwardly adjacent the stub pole; connections between the rear ends of said draw bars and the bearings at the inner end of the rear gangs; a bracket shaped member secured to the under face of the stub pole at the forward portion thereof, said bracket member being provided with two upstanding elements, the upper edge of each of which is provided with a series of notches; a. lever loosely 'fulcruined upon each of saidv brackets; a pin extending outwardly from each lever in line with the notches formed in the upper face of the bracket member; and a spring serving Vto hold the lever toward said bracket member and to cause the pin to enter one or the other of the notches in said bracket member.

15. In a disk harrow, thecombination of a rigid front frame; a stub pole extending forwardly therefrom; a pair of gang units located in rear of the front frame; a pivotal connection between said front frame and each of said units; a draft block slidably v mounted upon the stub pole; draft connections between said block and the disk units; a draft clevis mounted upon the stub pole for longitudinal adjustment with reference thereto; a rack secured to the clevis; a verti` cally disposed shaft; a pinion carried thereby and meshing with the rack; a hand wheel secured to the upper end of the shaft; a ratchet wheel associated with the hand wheel; a locking bolt normally held in engagement with said ratchet wheel; a lever handle Vpivotally attached to the lower end of the locking bolt; and two cams formed upon the hand lever, said cams coactiiig with a fixed portion of the bolt housing whereby the bolt will upon movement of the lever be I drawn downwardly and held in its retracted position so `that the shaft and its allied partsrmay run free.

y In testimony whereof I have signedrmy namev to this 'speciication Y GEORGE o. iinsron.

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